From: Ramin Ekhteiari (
Date: Thu Dec 12 2013 - 03:06:36 CST


I am working on a pdb file that has different segment id but with same chain id,
I'm trying to change the chain id of the each segments,
I do the following commands,
>> mol new file.pdb
set A [atomselect top "segment proa"]
set B [atomselect top "segment prob"]
set $A chain A
set $B chain B
***Now I want to save them as one pdb file***

Would be grateful for any help